[SECURITY-3033] Submit POST requests as needed

src/main/java/com/sonyericsson/rebuild/AbstractRebuildAction.java

@@ -0,0 +1,69 @@
+package com.sonyericsson.rebuild;
+
+import edu.umd.cs.findbugs.annotations.CheckForNull;
+import hudson.matrix.MatrixRun;
+import hudson.model.Action;
+import hudson.model.Item;
+import hudson.model.Job;
+import hudson.model.Queue;
+import hudson.model.Run;
+
+public abstract class AbstractRebuildAction implements Action {
+
+    @Override
+    public String getIconFileName() {
+        if (isRebuildAvailable()) {
+            return "clock.png";
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Method for checking whether the rebuild functionality would be available
+     * for build.
+     *
+     * @return boolean
+     */
+    public boolean isRebuildAvailable() {
+        Job project = getProject();
+        return project != null
+                && project.hasPermission(Item.BUILD)
+                && project.isBuildable()
+                && project instanceof Queue.Task
+                && !isMatrixRun()
+                && !isRebuildDisabled();
+
+    }
+
+    // Jelly
+    public abstract String getTaskUrl();
+
+    // Jelly
+    public abstract boolean isRequiresPOST();
+
+    private boolean isRebuildDisabled() {
+        RebuildSettings settings = getProject().getProperty(RebuildSettings.class);
+        return settings != null && settings.getRebuildDisabled();
+    }
+
+    /**
+     * Method will return current project.
+     *
+     * @return currentProject.
+     */
+    public abstract Job<?, ?> getProject();
+
+    @CheckForNull
+    protected abstract Run<?, ?> getRun();
+
+    /**
+     * Method for checking whether current build is sub job(MatrixRun) of Matrix
+     * build.
+     *
+     * @return boolean
+     */
+    public boolean isMatrixRun() {
+        return getRun() instanceof MatrixRun;
+    }
+}